Rat trap



im. 2, 1923. @www J. BARWICKI, .RAT TRAP.

F|LED APR. 6, 1922. 2 sHEEYs-sHEET @mmv J BARWICKI Jam. 2, 1923.

RAT TRAP FILED AFR. 6, 1922.

Patented dan. 2, 1923.

.raras i new naar.

Application filed sp1-i1 e,

To all 'whom-I5 may conoci-i7 l Be it known that l, dorm Binnvrcnr, acitizen of Poland, residing'at New' York, in the county of New York andState of New Yorlnhave invented certain new and useful improvements inRat 'l` raps, of which the following is a specification.

rlhis invention relates to animal traps,

adapted for use-in catching mice or rats.-`

The invention has for an object to provide an improved and noveltrap ofthe typein Vwhich the animal is projected into an enclosure by a movingdevice released by the animal pulling on a bait hook.

For further comprehension of the nven tion, and of the objects andadvantages thereof, reference will be had to the followy ringdescription and accompanying drawings, and to the appended claims inwhich the various novel features of the invention are more particularlyset forth.

Fig. 1 of the drawings is a partial c view and partial longitudinalvertical scc tional view of, an animal trap constructed according to myinvention.

Fig. 2 is a transverse vertical section on f lthe line 2-'2 of Fig. 1.

Fig. 3 is a fragmentary .side elevation ,illustrating particularly oneof the stand-- ards for supporting the rotary element.

Fig. ,11 is a perspectiveview of the trap. Fig. v5 is a detail face viewof the operating mechanism for` the rotary element. i Fig. 6 is atransverse vertical sectional view y thereof taken on the line 6-6 of dFig. 5.

housing or cage 10 which is mounted on a hase 11. The top. of. thishousing is comprised partly by the rotary element consisting of atransverse shaft 12 from which the spaced rods 13 project, and partlyhyr a series of arched rods. 14t-l which are spaced across the cage andstaggered with respect to the rods 13. The former normally occupy ahorizontal position closing the top of the.

1922. serial No. 550,195.

forwardy portion of the housing, while the latter present rear portions14; arched upwardly above the normal level of the former. and frontportions 11121 arched downwardly therebetween.

The front walll 10 of the housing is curved concentric to the shaft 12,which latter is journaled in frame pieces -or standards 16 having moreparticular reference to a trap' carried by the base 1() and extending upthe side walls the housing. Extending across ywithin the housing 10,between the front and rear ends thereof, is a partition 17 which securedat its lower edge to the base 10, while its. upper edge is spaced belowthe rear ends of the rotary element, this partition being also curvedconcentric to the shaft l2and forming with the front wall. 10 asemicylindrical chamber into which the a imal enters. The entrance tothis chamber is through an opening 20 in one of 4the side walls of thehousing.

Extending across the trap above the partition17 is a trap door 19 whichis hinged at its upper edge as at 19 and has its lower edge restingagainst the top edge of the partition.

Formed in the base 10 near the opposite wall ofthe housing to that inwhich is the opening 20, is a recess 21 in which the bait indicated at22, is located, the hait being "placed on the inner endof'a lever 23fulvcrumed between its ends as at2e in aitransverse slot 25 in the base.rlhe outer end of this lever projects from the base 10 and has attachedthereto the lower end of link 27 which extends-upwardly.outside thehousing and is connected at its upper end to an arm 28 controlling the`operation of a power mechanismfor rotating the element 12` 13.

This power means-comprises a stub shaft 30 journaled in a casing 31 xedto the side l of the cage and having connected thereto one end'of aclock spring 32whose other end is attached to the casing 31. Fixed onshaft 30 is a ratchet wheel 33 `engaged by a spring pressed pawl 34carried on a gear 35, loose on the stub shaft 30 and meshing with a.pinion 36 fixed on a stub-extension 12 of shaft 12 of the rotaryelement. To wind thv spring 32 a handle 37 is fixed on shaft 30r `lnconnection with this mechanism an escapement device is provided whichpermits of only one-half turn or revolution of the rotary element eachtime the bait is pulled,

this escapement device comprises a belly5 engagement with a series ofpins i3 fixed to the gear 35.

y One arm l of this bell-crank Ll() is formed with an abutment shoulder45 lto receive the pins 43 successively and hold the lo gear-35 againstrotation. The other arm 40 actsas a cam to be ,engaged by `onepin tomove the shoulder 45 into the path of the following pin. As one pinrides off thearm 40a arnet 1er pin rides behind the endvof l arm 40 andonto` the shoulder 45, a notch 40h being cut 'in` arm e0 adjacent saidshoulder, through which the pin passes from the the shoulder when thelever 32 is actuated.

Als a convenient means of securing the yhousing` i() to the iframe Ihave shown the housing as` seating freely between theframe piecesl andengaged therewith by means of `clip members L8 rotatably carried by thehousing and adapted to take over the frame '25 pieces '16.

Asa means for killing the animals after they have been deposited inthespace at the rear of the trap I provide in the top face of the'base 10two suitably insulated contact bars 50 connectedby wires 5l to a hand`switch 52 on the base, to which switch any suitable `current leads mayconnect.

The manner of operation of my improved trap is as follows: The animalattracted by the bait, enters through the opening 20 into thesemicylindrical chamber under the rods 13. WVhen the bait ispnlled,` thelever 23 is rocked, pulling link 27' and depressing the escapement arm28, rocking the` bell-crank el() and disengaging the abutment shoulderfrom the adjacent one of the pins`43. iGrear 35 being freed ispartiallyrotated by clock `spring 32, rotating in turn pini'on36 andcausing the rotary element to malte a 45 half-turn, throwing the animalthrough the door 19 and into the main body of the trap. As gear 35rotates the engagement of fone of the pins 4,3 ,withthe cam arme()EL `ofthe bell crank 4:0 clauses the latter to be rocked in'an oppositedirection tothat in which it had jnstbeen rocked by arm 28, moving thejshoulder 45 back in front of `one ofthe following pins, As will beunderstood, the number of pins t3fwill be proportionedto `the relativesizesf of the gear-,35 and pinion so as `to make the `rotary elementmake one half turn and come to rest withfthe rods 13 horizontal. UAS therotary element swings, ,in the direction of the arrow in (3o Fig.` 1,the rods 13 engage the animal and i "movethe latter up the partition 17and fover 'y Mthelatterintothe rear of the cage, door i ,asesor 1.9yielding as the animal is thrown over thetop of the partition bycentrifugal force. In Fig. 8 I have shown a modified arrangement forautomatically closing the circuit tothe contact bars 50. Thisarrangement comprises a bell-crank lever suitably fulcruined in thehousing and having one arm normally. projecting across the path ofmovement of one or more of the rods 13 and the other arm projecting intooperative proximity to a pair of spring contacts 61. Connected to thebell-crank lever is the plunger `62 of a dash-pot (33 which serves toslow up return movements of the lever, it being understood that, byreason ofthe resiliency of the springs 61V 'they u 'ilinot disengagefrom one another on initial backward movement of thelever 60, `so thatthe bars will remain operative for electrocuting the animal for anappreciable period of time. Having thus described my invention what lclaim as new and desire to protect Letters Patent of the United Statesas follows: i

l.. An animal trap` comprising a housing arranged. to present a pair ofchambers, one of said chambers-having an entrance opelr ing in the vwallthereof and a second opening in the floor thereof, a rotary elementadapted by rotation to cause. the animalito be discharged from onechamberfto the other, a bait holding ,lever extending under the floor ofthe first mentioned chamber andhaving oneV end formed to receivethe bait,and in registry with thesaidfloor opening, 'spring power mechanismnormally urging said rotary element to rotate, a detent holding saidrotary element vagainst rotation, and op.-

erative connection between saidbait holding lever and detent whereby,movement ofthe former releases the latter.

2. In an animal trap,',ahousingarranged to present a pair `of chambersonefofwhich is formed with A'an entra-nce vopening`at one side and arecess in the` bottom thereof,y a rotary element in said'last chamberJadapted to discharge theaniinalinto the other chamber, abait-holdingleverinounted in the bottom of saidchamber'andprojectinginto the said recess, a link connected to saidAbait holding lever, a hinged ,arm to which said link is also connected,agotary member hav ing operative relation with saidrotary element,spring power means appliedto said rotary member,"a series of stnds onAsaid rotary member, and a bell-crank fixed tosaifd arm and presentingan abutment shoulder "and a cam' arm adapted to` be engaged by f saidstuds, for the purpose speciiied. In testimony whereof have aflin'ed mysignature.

JOHN ,rennes1-

